Finding the Fourth Proportional to 309.11, 463.93 and 154.99
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Solution
The fourth proportional to 309.11, 463.93 and 154.99 is: 232.62
Step by Step Solution
- Step 1: Write the proportion equation
309.11 : 463.93 = 154.99 : x - Step 2: Convert to fraction form
309.11/463.93 = 154.99/x - Step 3: Cross multiply
309.11x = 463.93 × 154.99 - Step 4: Simplify right side
309.11x = 71,904.51 - Step 5: Solve for x
x = 71,904.51/309.11 - Step 6: Final answer
x = 232.62
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.